I have a feature request/question/hope:
in the "preview all models" previewer, think you could get a way to have it animate all models? I know guess working the positions of my models is a pain but this ease of access option would help timing a ton. (edit) or atleast choose which ones to animate
^This.
I don't know if it would be possible, but if you could find even the smallest amount of time to put to allowing multiple models to play multiple animations, that would be wonderful and all kinds of awesome.